Introduction: an Atlas of Submarine Glacial Landforms by J. A. Dowdeswell, M. Canals, M. Jakobsson, B. J. Todd, E. K. Dowdeswell, and K. A. Hogan Geological Society, London, Memoirs Volume 46(1):3-14 November 30, 2016 © 2016 The Author(s). Published by The Geological Society of London

The global distribution of glaciers and ice sheets and the glacier-influenced, or glacimarine, environment. The global distribution of glaciers and ice sheets and the glacier-influenced, or glacimarine, environment. The approximate modern (yellow dotted line) and Quaternary full-glacial (yellow dashed line) limits of ice-rafting and ice-keel ploughing of the seafloor are shown (modified from Anderson 1983). GEBCO World Map, Gall projection. J. A. Dowdeswell et al. Geological Society, London, Memoirs 2016;46:3-14 © 2016 The Author(s). Published by The Geological Society of London

Characteristic morphology of a high-latitude continental margin including fjord, shelf, slope and deep-ocean settings (modified from Dowdeswell et al. 2002). Characteristic morphology of a high-latitude continental margin including fjord, shelf, slope and deep-ocean settings (modified from Dowdeswell et al. 2002). The changing position of ice-sheet termini, which is the focus of glacier-driven sedimentation, is shown for modern interglacial and Quaternary full-glacial times. J. A. Dowdeswell et al. Geological Society, London, Memoirs 2016;46:3-14 © 2016 The Author(s). Published by The Geological Society of London

The varying preservation of glacial landforms in marine and sub-aerial environments after deglaciation less than 100 years ago. The varying preservation of glacial landforms in marine and sub-aerial environments after deglaciation less than 100 years ago. (a) Multibeam-bathymetric image of the seafloor of Borebukta in western Svalbard, adjacent to two tidewater glaciers. Five types of glacial landform (1, oldest, to 5, youngest) are superimposed, illustrating a very well-preserved assemblage of submarine landforms (modified from Ottesen & Dowdeswell 2006). (b) Photograph of the forefield of Kotlujökull, Iceland (courtesy of D.J.A. Evans). The glacier is on the right. Note the erosion of the glacier forefield and moraine ridges by braided meltwater streams. J. A. Dowdeswell et al. Geological Society, London, Memoirs 2016;46:3-14 © 2016 The Author(s). Published by The Geological Society of London

Map showing the geographical locations of the contributions to the Atlas of Submarine Glacial Landforms (yellow dots). Map showing the geographical locations of the contributions to the Atlas of Submarine Glacial Landforms (yellow dots). GEBCO World Map: Gall projection. Note that the distribution includes Late Ordovician glacial landforms from Northern Africa. J. A. Dowdeswell et al. Geological Society, London, Memoirs 2016;46:3-14 © 2016 The Author(s). Published by The Geological Society of London

The climatic continuum of glacier-influenced marine settings for (a) the modern, or Quaternary interglacial Earth, and (b) Quaternary full-glacial conditions (modified from Dowdeswell & Vásquez 2013). The climatic continuum of glacier-influenced marine settings for (a) the modern, or Quaternary interglacial Earth, and (b) Quaternary full-glacial conditions (modified from Dowdeswell & Vásquez 2013). Mid-latitude ice sheets grow to reach the sea closer to the equator during full-glacials. J. A. Dowdeswell et al. Geological Society, London, Memoirs 2016;46:3-14 © 2016 The Author(s). Published by The Geological Society of London

Illustration of the nested hierarchy of submarine glacial landforms used to organize the contributions in the Atlas of Submarine Glacial Landforms (from Dowdeswell et al. 2016b). Illustration of the nested hierarchy of submarine glacial landforms used to organize the contributions in the Atlas of Submarine Glacial Landforms (from Dowdeswell et al. 2016b). (a, b) Individual landforms: slides, iceberg ploughmarks (PLMs) and moraine ridges. (c) An assemblage of landforms. (d) Fjord–shelf–slope landsystems. LIA, Little Ice Age; MSGL, mega-scale glacial lineations; TMF, trough-mouth fan. J. A. Dowdeswell et al. Geological Society, London, Memoirs 2016;46:3-14 © 2016 The Author(s). Published by The Geological Society of London